Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The value of 
for which both roots of the equation 
are completely in 
, may be equal to :
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, b)
Let ＇ s check carefully ．
Equation ： 
， roots in 
．
－ 
－ 
－ Product of roots ： 
for both roots in （－ 1 ， 1 ）： 
Combine ： 
－ But we must also check the sum and discriminant to ensure both roots inside 
．
Quadratic roots formula ： 
For roots 目
For roots 
凹
So the range is really ： 
－ Only options in this ： － 1 and 0
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